Pressure oil can



Aug. 15, 1939. C, A, ANDERSON 2,169,209

PRESSURE OIL CAN Filed Feb. 11, 19:59 2 sheets-sheet 1 Zi 22 Wl fz HM P I /0 l r j W /ff- .'I l9 /5 Il /5 I/VVE/VT.

Aug. 15, 1939.

c. A. ANDERsoN PRESSURE OIL CAN 2 Sheets-Sheet 2 Filed Feb. 11, 1939 Patented Aug. l5, 1939 UNITED ,STATE-s PATENT OFFICE PRESSURE i OIL CAN chester A. Anderson, utchneld, Minn., assigner of one-third to Alfred Anderson and one-third gmIaymond N. Urnberg, both of Htchlleld,

Application February 11, 1939, Serial No. 255,966

s claims.

ible bottom which is -pressed inwardly to iorcel oil therefrom. y

Another object of the invention is to provide a relatively simply formed pressure oil can whose different parts can be assembled with a minimum of labor.

Anotherobject of the invention is toL provide means for effectively sealing the can against leakage whilestill maintaining the parts easily removable from the can body for illling or m cleaning.

Still another object of the invention is to provide a pressure oil can with reciprocatory or pumping action wherein the moving parts are `eilectively packed or 'sealed to prevent loss of lubricant between such moving parts and their guides.

'Ihese and other objects and advantages of the invention will more fully appear from the following description made in connection with the accompanying drawings, wherein like reference characters refer to the same or similar parts throughout the views, and, in which:

Fig. l is a vertical section through one form of my invention;

5 Fig. 2 is a vertical section through another embodiment of the invention; FiFier. 3 is a section taken on the line 3 3 ci Fig. 4 is an elevation with parts broken away oi still a third form of the invention with the pumping structure removed from the can body;

Fig. 5 is a seeticm taken approximately on the line 5-5 of Fig. 4; and

- Fig. 6 is a section taken approximately on the line 6-8 oi Fig.

. In Fig. l there is shown a can body I having an opening at its upper end the edge defining said opening having a sheet metal mouthpiece 8 crimped thereto at said mouthpiece having externai threads i'ormed thereon as is clearly shown. The upper edge of the mouthpiece I is rolled as at I0 to provide aseat for purposes which will soon become apparent.

Extending into the body oi the can 'I through the opening in its upper end is a substantially (CII. 221-50) cylindrical element II whosegbottom is closed and the central portion of said bottom is struck upwardly as at I2. In the side wall of the cylinder II are openings I 3 which provide for communication between the interior of the can body 5 and the interior oi said cylinder. 'I'he upper portion of the cylinder II is bent to provide a radial iiange Il, and the outer edge of said flange is rolled as at I5 to provide a retainer for a gasket or packing ring I8. It will be noted 10 from the drawings that the packing ring is positioned between the rolled upper edge of the mouth 8 and the underside of the cylinder and iiange I 6.

Within the cylinder II isA positioned an inverted cup-shaped plunger element I-I which has rigidly secured thereto' a spout I8, and the irlterior of said plungerlelement -II opens into said spout as is clearly shown.` The plunger I'I is sndable 1n the cylinder Il and 1n the upper po- 20 sition' shown in the drawings the bottom edge of the plunger is positioned above the openings I8 in the wall of the cylinder. A lcoil spring I9 is positioned between, the underside of the uppenend of plunger I1 and the bottom of the 25 cylinder II under compression to normally malntain said plunger in its upper position. It will be noted that the upwardly struck bottom I2 of the cylinder I I provides a groove which acts as a seat for the lower end of spring I9, and said spring tapers to some extent upwardly and is seated around a flange 2U provided by.out wardly flaring the lower end of the spout I8 at the point where it is connected to the upper end -of the plunger I'I. i

A flange 2i which is secured on the spout I8 provides a finger grip which is engaged and pressed upon to lower the plunger and spout with respect to the cylinder II when pumping lubricant. the flange 2i and the lower end of the spout is of uniform diameter, and said uniform spout portion extends through a central aperture in a cap 22 which is provided with a downwardly extending threaded element 28 which is adapted to 45 engage the threads on the mouthpiece 8. It will be noted that the cap 22 in its central portion around the opening therein is bent upwardly as at 24 and provided with a turned edge r The edge' portion 25 slidably engages the spout 0U, I8. A central plate 26 underlies the cap 22 `and may or may not be secured to said cap. The plate 28 is apertured and that portion surrounding the aperture is bent as at 21 and provided with an edge bent in the same manner as 55 That portion of the spout I8 between 40 the cylinder between the cap plate 26 and theV upper side of the plunger I1. These openings admit lubricant to that space to assist in forming a seal between said plunger and the inner wall of the cylinder I I.

In operation the can body 1 is lled with lubricant and the cylinder with its plunger element and attached spout are secured in position in the mouth of the can by screwing the cap 22 into place. If oil is dispensed with the can spout horizontal or below the horizontal it is necessary only to reciprocate the spout and plunger I1 by exerting pressure on the flange 2l and then releasing it to permit action of the compression spring I9. When the plunger and spout are pressed inwardly the side wall of the plunger will pass the openings I3 in said cylinder and prevent ow of oil back into the oil of the can. It the plunger is pressed further inwardly the oil which has accumulated between the bottom of the cylinder II and the inner walls of the plunger I'I will be forced out through the nozzle I8. However, if the can is used with the spout pointing upwardly, it is, of course, necessary to first load the cylinder II with lubricant. This is done by tipping the can so that oil will run into the cylinder between the bottom of the cylinder and the plunger I 1. The plunger is then pressed inward slightly to close off the openings I3 and then the can can be returned to an upright position. Further pressure of the plunger will cause oil to be' forced outwardly through the spout I8. The seal between the plunger and the cylinder Il is naturally a good one due to relatively close tltting of the parts and the fact that oil being relatively viscous will close up the slight space between them so that there is no appreciable amount of leakage past the plunger. If there should be any slight leakage this oll can, of course, drain back into the can through the opening 29. The packing rings I6 and the packing 28 prevent any oil from escaping from the can except through the spout I6 in normal operation of the device. The device is easily assembled since the plunger and spout element are slipped into the cylinder and the cylinder is then inserted in the mouth of the can with the flange I4 resting on the upper edge of the can mouth 8. The cap element 22 with its cooperating plate 26 is then slipped over the spout and screwed into position, and the finger engaging flange 2I on the spout is secured in place by welding, soldering, or merely by means of a press rit. This assembly operation is extremely simple and takes up very little time and the several parts are so arranged that no particular skill is required in assembling since said parts need not be brought ltogether with any need for adjustment or accurate positioning. s

In Fig. 2 there is shown a can body 30 which has a mouth 3I similar to the mouth 8 in Fig. l except that the upper edge of said mouth is rolled outwardly as at 32, whereas the edge in the first described embodiment is rolled inwardly. A substantially cylindrical element 33 extends downwardly into the interior of the can through the mouth and is open at its lower end. The cylinder is widened at the point where it extends outwardly through the mouth and the widened portion thereof is provided with a threaded area 34 which cooperates with the threads on the can mouthpiece 3I. The extreme upper edge of the widened cylinder is flanged outwardly to provide a lip 35. A cap 36 lits over the top of the enlarged end of the cylinder 33 and is crimped around the lip 35 to retain a packing ring 33a. The packing ring 33a rests against the upper rolled edge 32 of the can mouthpiece. A sleevelike element 31 extends into an aperture in the center of the cap 36 and is adapted to slidably t the interior of the cylinder 33. Extending downwardly from the lower end of the sleevelike element 31 are legs 38 which pass through openings in the rolled lower edge 39 of the cylinder 33. The lower ends of the legs 38 are turned inwardly as at 40 to limit upward movement of the sleeve 31 with respect to the cylinder 33. The upper end of sleeve 31 is flared outwardly as shown and this ilare receives the lower portion 4I of a spout 4Ia.

An inner sleeve 42 is provided with a corrugation 43 which rigidly holds a disc 44. The disc 44 and inner sleeve 42 provide an oil receiving pump chamber which is similar to the chamber formed in the lower part of the cylindrical member II in Fig. 1. The outer cylinder 33 is provided with openings 45 which register with openings 46 in the inner sleeve 42 so that oil may flow from the can into the chamber formed by said inner sleeve and the disc 44. A compression spring 4l is positioned between the disc 44 and the ilared base 4I of the spout 4Ia. This spring normally maintains the intermediate sleeve 31 in the upward position shown in the drawings. A suitable packing material 48 is positioned in the enlarged portion of the outer cylindrical member 33 and retained therein by the cap 36.

It is obvious that the function of the structure shown in Fig. 2 is the same as that above described with respect to Fig. 1.

In Fig. 4 there is shown a pressure pump assembly which is adapted to fit into a can such as shown in Figs. 1 and.2, said can having a mouth similar to the mouth 3I with the rolled edge 32 disclosed in Fig. 2. Instead of the cylinder such as is provided in the rst two embodiments I provide a strip of metal 49 which is curved transversely as best illustrated in Fig. 4, and said strip has a pair of upstanding legs with its intermediate portion bent upwardly to provide a central support 50 for a resilient or flexible plunger 52 secured to support 50 as by a rivet running through a disc 5I. The element 49 constitutes a sleeve-like guide which is the equivalent of elements II and 33 in the two previously described constructions. The legs of the element 49 extend upwardly and are crimped around the outer edge of a ring 53 which as shown is rightangled in cross section. The crimped. or rolled upper edges of the leg's4 of the element 49 rest upon an inwardly turned ilange of a threaded collar 54, the latter corresponding to the threaded enlarged cylindrical portion 34 in Fig. 2. The threaded collar 54 has a radial upper flanged portion 55 which is slightly rolled at its extreme edge to secure a packing ring 56 which is adapted to rest against the upper rolled edge of the can mouthpiece such as ,the mouthpiece 3| with its Aedge 32 in Fig. 2.

A sleeve 51 extends in between the upstanding legs of the element l! with a sliding llt and the lower edge of the sleeve 51 is flared outwardly at l, said ilare coming into engagement with the ring 53 to limit the upward movement of the sleeve 51 with respect to said element Il and the ring 53. The upper end of the sleeve Il has an annular iiange 59 to which is secured the base il, of a spout 6|. A compression spring l2 is positioned between the disc il and the underside of thespout base 60. A plurality of small ears I3 which are connected to the disc 5l are adapted to anchor the spring I! at its lower end. The plunger 52 on the disc Si is oi' such size that it will lust fit the inner diameter of the movable sleeve 51 when said sleeve is pressed downwardly. A cap 8l is crimped over the rolled edge I3 of the collar 5l to retain a packing material 6I, and said cap BI is provided with a central flanged aperture to slidably receive the sleeve 5Tw In this least embodiment of my invention it will bel seen that when the can is tipped, oil will ow into the sleeve-like plunger l1 and when it is pressed in slightly the bottom of said plunger will be closed by the packing ring 52 and disc 5l and when the can is again tipped to its normal vertical position further pressure on the plunger and spout assembly will cause oil to be elected from said spout. In .assembling this structure the opstanding legs of the element i! are iirst crimped around the ring 53 and the assembly inserted into the threaded element 54 from the upper side therof until the roll or crimp on the upper end of each oi' the legs of the element i! rests against the bottom ange of said threaded element 5l. This assembly, of course, is made after the plunger Sl' has been positioned between the legs of the bent member I9.

From the foregoing description it will be seen that I have provided an improved pressure dispensing can which is eillcient in operation and which can be very quickly and easily assembled. It is a device which permits ejection oi' oilv therefrom in an upward direction and in fact in any directionunder pressure. The various parts are so arranged and formed that the assembly work requires little or no crimping together or soldering of parts during said assembly operation. It is eiectively sealed to prevent the escape of oil and is so constructed that it can be easily manipulated with one hand. The plunger and spout assembly is provided with amply -sumcient guide elements to prevent it from jamming in operation so that the movable parts will function smoothly. Furthermore, it is a device which is as easily reillled with lubricant as any conventional type oi oil can.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions oi the variousparts without departing .from the scope of my lnvention.

What is claimed is: Y

4LA pressure oil can comprising a. can body having an opening therein, a sleeve supported in said opening and extending into said body and having an opening communicating with the interior thereof, a movable assembly comprising a spout and cylindrical plunger, said plunger having an open bottom and interior and communieating with said spout, said plunger being in slidable contact with the inner wall ci said sleeve throughout its limit of slidable movement, a cap element secured across the opening in said body and having an aperture to slidably receive and guide said movable assembly, and a mass of packing material around said movable assembly and retained by said cap.

2. A pressure oil can comprising a can body having a mouth, a substantially cylindrical member extending into said body through said mouth and including a lower stationary plunger portion; said cylindrical member communicating with the interlor oi said body above said stationary plunger portion, an upper annular flange on said cylindrical member; a sealing ring beneath said ilange and resting upon the edge of said can mouth, an assembly comprising a spout and a hollow plunger in communication therewith, said assembly being movable in said cylindrical member to cut oi communication between said cylindrical member and the interior of said body above said stationary plunger portion'to exert premure on the liquid in said cylindrical member, an apertured cap detachably connected to said can mouth, said movable assembly being slidably positioned in said aperture, and packing material around a portion of said assembly and retained in position by said cap.

3. A pressure oil can comprising a can body having a mouth, a cylinder extending into said body through said mouth and having a closed lower end, said cylinder having an opening com-,- municating with the interior of said body, an

annular dangle on said cylinder overlying the edge of said mouth, a gasket held by said ilange between the ange and the ledge of said mouth, a plunger slidable in said cylinder from a point above lthe opening in said cylinder to points below said opening, a spout secured to said plunger and communicating with the interior thereof, a compression spring` between the bottom of said cylinder and underside of said plunger normally holding said plunger-,in the upper portion of said cylinder above said cylinder opening, a cap detachably secured to said mouth and having an Aaperture slidably receiving a portion of said spout, andpacklng material retained around said spout by said cap.

4. The structure in claim 3 and said cap ln.- cluding an apertured main body portion and a disc secured thereto, said disc having an aperture in alignment with the aperture in said cap body,

those portions of saidl cap body and said disc surrounding said aperture being spaced from each other, and said packing material being retained in the space thus formed.

5. A pressure oil can comprising a can body having a mouth portion provided with internal threads; a sleeve-like element the lower portion of which is positioned within said can body and the upper portion of which is enlarged and externally threaded to ilt the threads in said can mouth, the lower end of said sleeve being rolled to form an annular open topped channel, an interna] sleeve resting at its lower end within said channel and spaced inwardly from the walls of the lower portion of said outer sleeve-like member, said inner and outer sleeves having regis-- tered openings therein to permit the ilow of liquid from the interior of said can body into said inner 'sleeve member, said sleeve being clo'sed below the tion on its lower end to limit upward sliding movement oi said ieg relative to said channel, a

spout secured to the upper portion of said cylin- 4 e drical plunger, a compression spring positioned between the closure in said inner sleeve and a portion oi.' said plunger and spout assemblyto normally' force the latterI upwardly, the lower edge of said cylindrical plunger being normally positioned above the openings in said inner and outer sleeve members, and said plunger being movable inwardly with respect to said inner and outer sleeves to shut of! communication between said openings and to permit pressure to be exerted upon liquid within said inner sleeve.

6. A pressure oil can comprising a can bod! having a mouth portion, a collar detachably secured to said mouth portion and having an inwardly extending flange on its lower end, a strip o! arcuate cross section and having vertically disposed leg portions at its ends; the intermediate portion of said strip supporting a stationary plunger element, the ends of said vertical legs having opposed channels, a ring element clamped between said vertical legs and positioned in said opposed channels, said strip with its vertical legs being positioned within the iiange on said collar and being retained in ring clamping position thereby, a movable cylindrical plunger element a portion of which is siidable between the legs ci said strip, said cylindrical plunger having a laterally extending stop element at its lower end, said ring lying in the path of upward movement of the stop element on said plunger, a spout secured to the upper end of said plunger, a compression spring connected between said stationary plunger element and a portion of said movable plunger element, and packing material around said movable plunger and within said collar.

` CHESTER. A. ANDERSON. 

